Hosieky-machihe yaeu-teistsiokt device



Nov. 8, 1927. 1,648,815

c. L. LANDIS HOSIERY MACHINE YARN TENSION DEVICE Filed May 15, 1926 2 Sheets-Sheet 2 HHHHI Patented Nov. 8, 1927.

UNITED STATES PATENT OFFICE.

HOSIERY-MACHINE YARN-TENSION DEVICE.

Application filed May 13,

This invention relates to take-up adjustments for knitting machines and more par ticularly to stocking knitting machinery and its object is to provide a cam plate that may be se .li'GCl to a wheel constantly rotating and adapted to oscillate a leverhaving an anti-friction roller at one end for engagement by the cams and a rod and hook at the opposite end adapted to catch the yarn as it passes from the spool to the knitting needles and by its reciprocating movement to keel the yarn taut so that the slack will not catch in other parts of the machine or would twist or knot. unless properly disposed of.

These and other objects and details of the invention are more fully described in the following specification, set forth in the appended claim and illustrated in the accomianyin drawings, wherein:

1 is a side elevation of a stocking knitting machine, showing the improvement applied thereto.

2 is a detail view of the cam'plate its inner side. 3 is an edge view of said cam plate.

i is a detail view of the operating ly so much of the knitting machine is lawn in Fig. 1 as is necessary to illustrate 1 application and operation of the 1md take-up which consists of a cam orov "late 0 that is secured to a wheel or head 1 on the shaft 12, that forms parts of the 'tocking machinery in common use.

its will be more clearly seen in Figs. 2 and 8, the plate is spaced away from the face of wheel 11 by studs 13 at the rear of the cam plate, but held rigid with the wheel by means of bolts 14: that pass through slots and into the wheel 11 and their passageway in the cam plate consists of slots 15 that permit of a delicate adjustment of the cam to effect the operation of the take-up mechanism at the proper time.

The cam 10 has two faces that cause a take-up and retention movement; the face 16 being shorter than the face 17, it follows that its operation will occupy much less time than the face 17.

Upon the above-described faces is adapted to run a roller 18' carried at the end of a lever 19, that is pivoted at the frame of the knitting machine at 20, and has various man 1926. Serial No. 108,842.

perforations 21 so it may be adjusted on the pivot to provide more or less leverage.

At the outer end of the lever 19 is secured a link 22 thatcarries at its upper end the rod 23 having the hook 24 at its extremity to catch the yarn Y as it passes from its spool to the needles and is held taut until needed.

The yarn Y is released when the roller 18 reaches the interval'between the two cam faces, and these intervals occur twice during the rotation of the wheel 10, and are of the same length.

As shown in Fig. 1, the yarn is held taut, but as the wheel 11 rotates in the direction indicated by the arrow, the roller 18 will drop into the interval between the two cam faces 16 and 17, when the hook 24 will ascend and the consequent slack in the yarn wih permit of its being fed into the needles, after which the roller will ride up the in clined end of face 17, and the hook will again be brought down.

A coil. spring secured to the lever at one end and to the frame of the machine at the other end, tends to keep that part of the lever and the hook 25 in its elevated position and to throw th roller 18 against the cam faces.

By this simple device, that may be readily applied to a knitting machine at some rotating part, the yarn may readily be taken up, and fed out automatically without any further care or attention.

It is obvious that the parts may be otherwise arranged or modified without departing from the essential features above described, or from the scope of the appended claim.

hat I claim is:

In taking up mechanism for a knitting machine, the combination of rotating means connected with said knitting machine, a disc with cam faces and slots adapted to be adjustably secured to said rotating means, a lever pivoted to the said machine, a roller carried at one end of the lever and adapted to play on the faces of the cam disc, a link at the other end of the lever, a hooked rod carried by the link, and bolts passing through the slots to secure the disc to the rotating means.

In testimony whereof I hereunto afliX my signature.

CHESTER L. LANDIS. 

